Cycles and rendering on iMac 2011

Support Lighting and Rendering
1

Hi!

I’ve tried the new Cycles render engine (Blender 2.63 64bit) on my iMac 2011 (with an ATI HD 6970) and I’ve tried to speed up rendering using the OpenCL, but as I use the Experimental (as feature set) and “GPU Compute” as “Device” I get a wrong image. Sometimes it seems that lighting is wrong (even with the default scene with only a cube) or sometimes it doesn’t render nothing (just a checked plane that seems like a strange way to report that something went wrong :().

Did you have noticed the same problem with Mac machine?

Thanks.

2

GPU rendering works with Nvidia cards only as far as I know.

3

This should apply to CUDA implementation, but OpenCL implementation should available for other GPU :spin:

Thanks

4

This should apply to CUDA implementation, but OpenCL implementation should available for other GPU :spin:

Thanks
Why are you expecting openCL to work correctly ? It’s still very experimental and you most likely need the correct drivers to get all the not fully supported features.

5

And that is the problem. Open CL doesn’t work right at the moment. Only CUDA. So just Nvidia unfortunately. I have a Macbook Pro with a Nvidia Card and it works.

6

Ehm… You’re right! No wonder it is reported as “experimental” :eyebrowlift2:
Anyway I hope to use it soon!

Thanks.

7

Cycles is positively goofy (doesn’t work…) on an iMac/macBook until CUDA is installed.